Period
to 23 April 2019

The following table provides summary statistics for permanent job vacancies with a requirement for ISDN skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited ISDN over the 6 months to 23 April 2019 with a comparison to the same period in the previous 2 years.

Integrated Service Digital Network (ISDN)
UK
6 months to
23 Apr 2019
Same period 2018 Same period 2017
Rank 1017 1083 980
Rank change year-on-year +66 -103 +77
Permanent jobs citing ISDN 90 113 196
As % of all permanent IT jobs advertised in the UK 0.061% 0.064% 0.11%
As % of the Communications & Networking category 0.39% 0.43% 0.71%
Number of salaries quoted 61 79 145
UK median annual salary £40,500 £50,000 £45,000
Median salary % change year-on-year -19.00% +11.11% +5.88%
10th Percentile £27,500 £25,000 £26,750
90th Percentile £54,000 £66,800 £65,000
UK excluding London median annual salary £40,500 £37,050 £45,000
% change year-on-year +9.31% -17.67% +21.62%

ISDN is in the Communications and Computer Networking category. The following table is for comparison with the above and provides summary statistics for all permanent job vacancies with a requirement for communications or computer networking skills.

All Communications and Computer Networking Skills
UK
Permanent vacancies with a requirement for communications or computer networking skills 22,832 26,430 27,723
As % of all permanent IT jobs advertised in the UK 15.39% 14.91% 16.19%
Number of salaries quoted 17,469 21,033 22,585
UK median annual salary £47,500 £45,000 £45,000
Median salary % change year-on-year +5.56% - -
10th Percentile £26,250 £26,000 £25,500
90th Percentile £77,500 £75,000 £72,500
UK excluding London median annual salary £42,500 £42,500 £40,000
% change year-on-year - +6.25% -

ISDN
Job Vacancy Trend

Job postings citing ISDN as a percentage of all IT jobs advertised.

Job vacancy trend for ISDN in the UK

ISDN
Salary Trend

This chart provides the 3-month moving average for salaries quoted in permanent IT jobs citing ISDN.

Salary trend for ISDN in the UK

ISDN
Salary Histogram

The salary distribution of IT jobs citing ISDN over the 6 months to 23 April 2019.

Salary histogram for ISDN in the UK

ISDN
Top 14 Job Locations

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing ISDN within the UK over the 6 months to 23 April 2019. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 6 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Permanent
IT Job Ads
Median Salary
Past 6 Months
Median Salary
% Change
on Same Period
Last Year
Live
Job
Vacancies
England +82 79 £41,000 -18.00% 11
UK excluding London +62 61 £40,500 +9.31% 4
South East +57 32 £40,500 +15.71%
London +49 27 £42,000 -26.96% 7
North of England +53 14 £47,500 +35.71% 1
Yorkshire +26 9 £47,500 +5.56% 1
Wales - 8 - -
North West +41 5 £30,000 -14.29%
South West 0 3 £45,000 -25.00% 2
Midlands +28 2 £28,750 -42.50% 1
West Midlands +17 1 £35,000 -30.00% 1
Scotland +2 1 - -
East Midlands - 1 £22,500 -
East of England - 1 £32,500 -

For the 6 months to 23 April 2019, IT jobs citing ISDN also mentioned the following skills in order of popularity. The figures indicate the absolute number co-occurrences and as a proportion of all permanent job ads with a requirement for ISDN.

1 59 (65.56%) Cisco
2 54 (60.00%) LAN
3 39 (43.33%) MPLS
4 37 (41.11%) WAN
5 34 (37.78%) Ethernet
6 33 (36.67%) VoIP
6 33 (36.67%) Juniper
7 31 (34.44%) Telecoms
7 31 (34.44%) Microsoft
8 27 (30.00%) DSL
9 26 (28.89%) Performance Monitoring
10 25 (27.78%) Firewall
11 24 (26.67%) Cisco Certification
12 23 (25.56%) CCNP
12 23 (25.56%) DNS
12 23 (25.56%) ATM
12 23 (25.56%) HSRP
13 22 (24.44%) GLBP
13 22 (24.44%) Proactive Management
13 22 (24.44%) TCP/IP
13 22 (24.44%) VRRP
13 22 (24.44%) Security Cleared
14 20 (22.22%) H.323
14 20 (22.22%) VMware
14 20 (22.22%) Active Directory
14 20 (22.22%) DHCP
15 19 (21.11%) Windows
15 19 (21.11%) Wireless
15 19 (21.11%) Skype for Business
16 18 (20.00%) VMware Infrastructure

ISDN
Co-occurring IT Skills by Category

The follow tables expand on the table above by listing co-occurrences grouped by category. The same job type, locality and period is covered with up to 20 co-occurrences shown in each of the following categories:

Application Platforms
1 19 (21.11%) Skype for Business
2 12 (13.33%) IIS
2 12 (13.33%) MS Exchange
3 5 (5.56%) Exchange Server 2013
4 3 (3.33%) Exchange Server 2007
4 3 (3.33%) Office Communications Server
4 3 (3.33%) SharePoint
5 2 (2.22%) Blackberry Enterprise Server
5 2 (2.22%) CMS
5 2 (2.22%) Exchange Server 2010
Applications
1 4 (4.44%) Microsoft Office
2 1 (1.11%) MS Visio
Cloud Services
1 12 (13.33%) Office 365
2 11 (12.22%) Microsoft Azure
3 7 (7.78%) Amazon AWS
4 5 (5.56%) SaaS
5 2 (2.22%) IaaS
6 1 (1.11%) Azure Active Directory
Communications & Networking
1 54 (60.00%) LAN
2 39 (43.33%) MPLS
3 37 (41.11%) WAN
4 34 (37.78%) Ethernet
5 33 (36.67%) VoIP
6 27 (30.00%) DSL
7 25 (27.78%) Firewall
8 23 (25.56%) ATM
8 23 (25.56%) DNS
8 23 (25.56%) HSRP
9 22 (24.44%) GLBP
9 22 (24.44%) TCP/IP
9 22 (24.44%) VRRP
10 20 (22.22%) DHCP
10 20 (22.22%) H.323
11 19 (21.11%) Wireless
12 16 (17.78%) SAN
12 16 (17.78%) Skype
12 16 (17.78%) VPN
13 13 (14.44%) ADSL
Database & Business Intelligence
1 18 (20.00%) SQL Server
2 5 (5.56%) SQL Server 2008
2 5 (5.56%) SQL Server 2012
3 4 (4.44%) SQL Server 2016
4 3 (3.33%) SQL Server 2005
5 2 (2.22%) SQL Server 2014
General
1 31 (34.44%) Telecoms
2 8 (8.89%) Welsh Language
3 7 (7.78%) Finance
4 6 (6.67%) Multimedia
5 4 (4.44%) Financial Institution
5 4 (4.44%) Legal
6 1 (1.11%) Advertising
6 1 (1.11%) Military
Job Titles
1 27 (30.00%) Network Engineer
2 11 (12.22%) IT Manager
2 11 (12.22%) NOC Engineer
3 9 (10.00%) Infrastructure Manager
4 8 (8.89%) Analyst
4 8 (8.89%) IT Infrastructure Manager
4 8 (8.89%) Operations Engineer
5 7 (7.78%) 3rd Line Engineer
5 7 (7.78%) Cisco Engineer
5 7 (7.78%) IT Support
6 6 (6.67%) Infrastructure Analyst
7 5 (5.56%) Architect
7 5 (5.56%) Infrastructure Support
7 5 (5.56%) Infrastructure Support Analyst
7 5 (5.56%) IT Analyst
7 5 (5.56%) IT Operations Manager
7 5 (5.56%) IT Support Analyst
7 5 (5.56%) Senior Network Engineer
7 5 (5.56%) Support Analyst
7 5 (5.56%) Support Engineer
Libraries, Frameworks & Software Standards
1 7 (7.78%) Web Services
1 7 (7.78%) XMPP
2 2 (2.22%) 802.1X
3 1 (1.11%) HTML
Miscellaneous
1 10 (11.11%) Data Centre
1 10 (11.11%) Video Conferencing
2 8 (8.89%) BBC
3 6 (6.67%) IVR
4 5 (5.56%) Analytical Skills
4 5 (5.56%) CMDB
4 5 (5.56%) Management Information System
5 4 (4.44%) Enterprise Software
5 4 (4.44%) NHS
6 3 (3.33%) Video Editing
7 2 (2.22%) Driving Licence
7 2 (2.22%) PKI
7 2 (2.22%) Replication
8 1 (1.11%) BYOD
8 1 (1.11%) Clustering
8 1 (1.11%) Fat Client
8 1 (1.11%) Fintech
8 1 (1.11%) Mobile App
8 1 (1.11%) Thin Client
Operating Systems
1 19 (21.11%) Windows
2 13 (14.44%) Windows Server 2008
3 12 (13.33%) Windows Server
3 12 (13.33%) Windows Server 2012
4 8 (8.89%) Windows 10
5 6 (6.67%) Windows Server 2003
6 5 (5.56%) Linux
6 5 (5.56%) Windows 8
6 5 (5.56%) Windows XP
7 1 (1.11%) Unix
Processes & Methodologies
1 26 (28.89%) Performance Monitoring
2 22 (24.44%) Proactive Management
3 18 (20.00%) ITIL
4 16 (17.78%) Incident Management
4 16 (17.78%) Statistical Analysis
5 10 (11.11%) Continuous Improvement
6 9 (10.00%) Business Continuity
6 9 (10.00%) Service Delivery
7 8 (8.89%) Customer Requirements
7 8 (8.89%) Line Management
7 8 (8.89%) Problem Management
8 6 (6.67%) Change Management
8 6 (6.67%) Cybersecurity
8 6 (6.67%) Problem-Solving
9 5 (5.56%) Configuration Management
9 5 (5.56%) Migration
9 5 (5.56%) Penetration Testing
9 5 (5.56%) Process Improvement
9 5 (5.56%) Security Patching
9 5 (5.56%) Validation
Programming Languages
1 14 (15.56%) SQL
2 13 (14.44%) PowerShell
3 7 (7.78%) C
4 2 (2.22%) VB
Qualifications
1 24 (26.67%) Cisco Certification
2 23 (25.56%) CCNP
3 22 (24.44%) Security Cleared
4 10 (11.11%) CCNA
4 10 (11.11%) JNCIS
5 9 (10.00%) Degree
6 8 (8.89%) SC Cleared
7 6 (6.67%) MCSE
7 6 (6.67%) Microsoft Certification
8 3 (3.33%) Computer Science Degree
8 3 (3.33%) DV Cleared
9 2 (2.22%) CCIE
9 2 (2.22%) ITIL Certification
9 2 (2.22%) Novell Certification
10 1 (1.11%) CCA
10 1 (1.11%) Citrix Certification
10 1 (1.11%) JNCIA
10 1 (1.11%) MCITP
10 1 (1.11%) MOS
10 1 (1.11%) VMware Certified Professional (VCP)
Quality Assurance & Compliance
1 6 (6.67%) SLA
2 5 (5.56%) ISO/IEC 27001
2 5 (5.56%) ISO/IEC 27002 (supersedes ISO/IEC 17799)
System Software
1 20 (22.22%) Active Directory
2 18 (20.00%) VMware Infrastructure
3 12 (13.33%) XenApp
4 8 (8.89%) vSphere
5 6 (6.67%) Hyper-V
6 2 (2.22%) ProxySG
7 1 (1.11%) NFS
7 1 (1.11%) VMware ESXi
7 1 (1.11%) XenDesktop
Systems Management
1 18 (20.00%) Cisco CUCM
2 11 (12.22%) Cisco UCCX
3 10 (11.11%) SCCM
4 6 (6.67%) WSUS
5 5 (5.56%) XenMobile
6 3 (3.33%) Backup Exec
6 3 (3.33%) Cisco UCCE
7 2 (2.22%) Cisco Prime
8 1 (1.11%) SolarWinds Orion
8 1 (1.11%) vCenter Server
Vendors
1 59 (65.56%) Cisco
2 33 (36.67%) Juniper
3 31 (34.44%) Microsoft
4 20 (22.22%) VMware
5 13 (14.44%) Blue Coat
5 13 (14.44%) Citrix
6 10 (11.11%) CheckPoint
6 10 (11.11%) Veeam
7 9 (10.00%) Avaya
7 9 (10.00%) HP
7 9 (10.00%) Riverbed
8 8 (8.89%) Dell
8 8 (8.89%) Genesys
8 8 (8.89%) Meraki
9 7 (7.78%) SolarWinds
10 6 (6.67%) F5
10 6 (6.67%) Mitel
11 5 (5.56%) IronPort
11 5 (5.56%) Siemens
12 4 (4.44%) Polycom